Overview | Package | Class | Tree | Deprecated | Index | Help
| Bouncy Castle Cryptography Library 1.85
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD

## org.bouncycastle.crypto.prng
Class DigestRandomGenerator

    java.lang.Object
      org.bouncycastle.crypto.prng.DigestRandomGenerator

All Implemented Interfaces:
  RandomGenerator

public class DigestRandomGenerator
extends java.lang.Object
implements RandomGenerator

Random generation based on the digest with counter. Calling addSeedMaterial will always increase the entropy of the hash.

Internal access to the digest is synchronized so a single one of these can be shared.

Constructor Summary
`DigestRandomGenerator(Digest digest)`

Method Summary
`void` | `addSeedMaterial(byte[] inSeed)` Add more seed material to the generator.
`void` | `addSeedMaterial(long rSeed)` Add more seed material to the generator.
`void` | `nextBytes(byte[] bytes)` Fill bytes with random values.
`void` | `nextBytes(byte[] bytes, int start, int len)` Fill part of bytes with random values.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### DigestRandomGenerator

    public DigestRandomGenerator(Digest digest)

Method Detail

### addSeedMaterial

    public void addSeedMaterial(byte[] inSeed)

  Description copied from interface: `RandomGenerator`
  Add more seed material to the generator.

  Specified by:
    `addSeedMaterial` in interface `RandomGenerator`
  Parameters:
    `inSeed` - a byte array to be mixed into the generator's state.

### addSeedMaterial

    public void addSeedMaterial(long rSeed)

  Description copied from interface: `RandomGenerator`
  Add more seed material to the generator.

  Specified by:
    `addSeedMaterial` in interface `RandomGenerator`
  Parameters:
    `rSeed` - a long value to be mixed into the generator's state.

### nextBytes

    public void nextBytes(byte[] bytes)

  Description copied from interface: `RandomGenerator`
  Fill bytes with random values.

  Specified by:
    `nextBytes` in interface `RandomGenerator`
  Parameters:
    `bytes` - byte array to be filled.

### nextBytes

    public void nextBytes(byte[] bytes,
                          int start,
                          int len)

  Description copied from interface: `RandomGenerator`
  Fill part of bytes with random values.

  Specified by:
    `nextBytes` in interface `RandomGenerator`
  Parameters:
    `bytes` - byte array to be filled.
    `start` - index to start filling at.
    `len` - length of segment to fill.

Overview | Package | Class | Tree | Deprecated | Index | Help
| Bouncy Castle Cryptography Library 1.85
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD